Author: Robert Hyatt
Date: 11:41:26 12/01/99
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On December 01, 1999 at 14:26:34, Ricardo Gibert wrote: >The blitz rating for crafty has plummeted to under 2800 in a fairly short period >of time. Has the latest version acquired a bug or we witnessing a normal rating >oscillation at its low ebb? For awhile there crafty sported a 3250+ rating that >must have sent frightened GMs diving under their desks for cover. What happened? It is a bug. I just found one serious thing, but I have simply not had time to do further analysis. I am currently in a hospital bed (fortunately with a phone and my trusty notebook) recovering from surgery. Once I get home later this week, I hope I can fix everything. The current bug dealt with having a "char passed_pawn_value[8]" array... which I scaled up so that a passer on the 7th starts at a score of 132. Unfortunately +132 (in a char) is a negative number which was not what I intended. :) It will be back before long... The other problem is getting the new majority/candidate passer code tuned. If it worries too much about that in the middlegame it can go astray. If it worries too little in the endgame, it can lose easily. It will take time to get everything back into 'harmony'...
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